$ git clone -n https://gitee.com/src-opencloudos-rpms/ppp.git /var/lib/mock/dist-oc9-build-137668-79582/root/chroot_tmpdir/scmroot/ppp
Cloning into '/var/lib/mock/dist-oc9-build-137668-79582/root/chroot_tmpdir/scmroot/ppp'...
$ git fetch origin 070a18830265140b10a8d825cc9ae0cf265d910c:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ppp
 * [new ref]         070a18830265140b10a8d825cc9ae0cf265d910c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 070a188 import ppp-2.5.0-6.tl4